The requirements for this year's Call of Duty, which runs on an engine updated for the Xbox One and PlayStation 4, are far more demanding than last year's Black Ops II, which required 4GB RAM and an Nvidia 8800GT or equivalent graphics card.

Neither Activision or Nvidia has commented on why the game required 50GB to install, but the large hard drive requirement is believed to be mostly down to an increased texture size to accommodate displaying the game on larger displays at higher resolutions.